Token Counter & Cost Calculator
Estimate tokens and API costs for GPT-4, Claude, Gemini and other AI models.
Claude Sonnet 4.5: $3/1M input | $15/1M output
0
Tokens
0
Characters
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Words
$0.00
Input Cost
0 tokens
Cost Estimate for 0 tokens
As Input$0.00
As Output$0.00
Round Trip$0.00
* Token count is an estimate. Actual tokens may vary slightly based on the specific tokenizer used by each model.
View all model pricing (per 1M tokens)
Claude Opus 4.5
$5 in / $25 out
Claude Sonnet 4.5
$3 in / $15 out
Claude Haiku 4.5
$1 in / $5 out
Claude Opus 4
$15 in / $75 out
Claude Sonnet 4
$3 in / $15 out
Claude 3.5 Sonnet
$3 in / $15 out
Claude 3.5 Haiku
$0.8 in / $4 out
Claude 3 Opus
$15 in / $75 out
Claude 3 Haiku
$0.25 in / $1.25 out
GPT-5
$1.25 in / $10 out
GPT-5.2
$1 in / $8 out
GPT-4.1
$2 in / $8 out
GPT-4.1 Mini
$0.4 in / $1.6 out
GPT-4.1 Nano
$0.1 in / $0.4 out
GPT-4o
$2.5 in / $10 out
GPT-4o Mini
$0.15 in / $0.6 out
o1 Pro
$150 in / $600 out
o1
$15 in / $60 out
o1 Mini
$3 in / $12 out
o3
$10 in / $40 out
o3 Mini
$1.1 in / $4.4 out
GPT-4 Turbo
$10 in / $30 out
Gemini 3 Pro
$2 in / $12 out
Gemini 3 Flash
$0.5 in / $3 out
Gemini 2.5 Pro
$1.25 in / $10 out
Gemini 2.5 Flash
$0.15 in / $0.6 out
Gemini 2.5 Flash-Lite
$0.1 in / $0.4 out
Gemini 2.0 Flash
$0.1 in / $0.4 out
Gemini 2.0 Flash-Lite
$0.075 in / $0.3 out
Gemini 1.5 Pro
$1.25 in / $5 out
Gemini 1.5 Flash
$0.075 in / $0.3 out
Gemini 1.5 Flash-8B
$0.0375 in / $0.15 out
Llama 3.3 70B
$0.6 in / $0.6 out
Llama 3.2 90B
$0.9 in / $0.9 out
Llama 3.1 405B
$3 in / $3 out
Mistral Large
$2 in / $6 out
Mistral Medium
$0.7 in / $2.1 out
Mistral Small
$0.1 in / $0.3 out
DeepSeek V3
$0.27 in / $1.1 out
DeepSeek R1
$0.55 in / $2.19 out
What is a Token Counter?
Tokens are the fundamental units that AI language models use to process text. A token can be a word, part of a word, or even punctuation. Understanding token counts is essential for optimizing your prompts and managing API costs.
Why Count Tokens?
- Cost Management: API pricing is based on tokens used. Know your costs before making API calls.
- Context Limits: Each AI model has a maximum context window. Ensure your prompts fit within limits.
- Prompt Optimization: Reduce tokens to lower costs while maintaining quality responses.
- Budget Planning: Estimate monthly API costs based on expected usage.
Supported AI Models
This token counter supports all major AI models including:
- OpenAI: GPT-4o, GPT-4o Mini, GPT-4 Turbo, GPT-3.5 Turbo
- Anthropic: Claude 3.5 Sonnet, Claude 3 Opus, Claude 3 Haiku
- Google: Gemini 1.5 Pro, Gemini 1.5 Flash, Gemini 2.0 Flash
Token Estimation
Our token counter provides accurate estimates based on common tokenization patterns. For English text, approximately 4 characters equal 1 token on average. The actual token count may vary slightly depending on the specific tokenizer used by each model.